Chemistry, 06.11.2021 01:00 candicecorvette
KOH + HBr → KBr + H2O
A student sets up a titration apparatus with 25 mL of potassium hydroxide in the flask. In three to five sentences, explain how the student can use a 0.1 M solution of hydrobromic acid to determine the concentration of potassium hydroxide in the reaction.
(4 points)
Answers: 3
Chemistry, 22.06.2019 03:10
Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol
Answers: 3
Chemistry, 22.06.2019 05:40
Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml
Answers: 2
KOH + HBr → KBr + H2O
A student sets up a titration apparatus with 25 mL of potassium hydroxide in...
Biology, 19.05.2020 14:04
Spanish, 19.05.2020 14:04
Social Studies, 19.05.2020 14:04
Mathematics, 19.05.2020 14:04
Chemistry, 19.05.2020 14:04
Mathematics, 19.05.2020 14:04
World Languages, 19.05.2020 14:04
English, 19.05.2020 14:04
Mathematics, 19.05.2020 14:04
Mathematics, 19.05.2020 14:04
Spanish, 19.05.2020 14:04
Mathematics, 19.05.2020 14:04